Title :
Mode division multiplexing using chip-scale silicon coupled vertical gratings
Author :
Chen, G.F.R. ; Wang, T. ; Ooi, K.J.A. ; Chee, A.K.L. ; Ang, L.K. ; Tan, D.T.H.
Author_Institution :
Singapore Univ. of Technol. & Design, Singapore, Singapore
Abstract :
Mode division multiplexing of modes in a silicon waveguide supporting three optical modes is demonstrated in the silicon on insulator platform. Cross-talk suppression of 17dB and 12dB are obtained for the zeroth and second order modes respectively. The extinction bandwidth is observed to increase with the mode order indicating a stronger cross coupling coefficient as the mode order is increased. The extinction ratio is also observed to increase from 5 dB to 15dB and >25dB as the mode order is increased, implying an increasing cross coupling coefficient.
Keywords :
diffraction gratings; elemental semiconductors; integrated optoelectronics; multiplexing; optical communication equipment; optical crosstalk; optical waveguides; silicon; silicon-on-insulator; chip-scale silicon coupled vertical gratings; cross coupling coefficient; cross-talk suppression; extinction bandwidth; extinction ratio; mode division multiplexing; optical modes; second order modes; silicon waveguide; silicon-on-insulator platform; zeroth order modes; Couplings; Multiplexing; Optical fiber devices; Optical fibers; Silicon;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2015 Conference on
Conference_Location :
San Jose, CA
